Cooling system

Abstract

The utility model provides a cooling system. The cooling system comprises at least one variable frequency water pump and at least one water cooling unit, each variable frequency water pump is arranged in a water outlet area in the cold water bin; the water cooling units are arranged in parallel, and each variable frequency water pump is connected with the corresponding water cooling unit so as to convey cold water in the water outlet area to the corresponding water cooling unit. Each water cooling unit is connected with the water return area of the cold water bin, receives a medium to be cooled, conducts heat exchange cooling on the medium to be cooled through cold water and conveys the cold water which is heated through heat exchange to the water return area. According to the cooling system, each water cooling unit conducts heat exchange cooling on the media to be cooled through cold water, an air cooling mode in the prior art does not need to be adopted, the heat exchange efficiency is improved, when the cooling system is applied to the offshore platform diesel generating set, the heat dissipation capacity of the platform diesel generating set is improved, seawater can be directly adopted as the cold water, and the service life of the platform diesel generating set is prolonged. The device is simple and convenient, and seawater after heat exchange can be reused.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas field equipment technology, and more specifically, to a cooling system. Background Technology

[0002] Mobile offshore platforms generally use diesel generator sets as the main equipment for providing power to the platform. The diesel generator sets use fan cooling systems. During operation, the fan cooling system may experience problems such as abnormal noise from the air-cooled bearings, loose and slipping belts, water tank leaks, and air intake into the water tank. This can easily lead to water backflow into the water tank, insects, and impurities clogging the water tank gaps, resulting in poor heat dissipation of the fan cooling system and excessive vibration around the fan. Consequently, the fan cooling system's ability to cool the platform's diesel generator set is affected, reducing the platform's heat dissipation capacity and resulting in low heat exchange efficiency of the platform's diesel generator set. Utility Model Content

[0003] In view of this, the present invention proposes a cooling system that aims to solve the problem that the existing fan cooling system reduces the heat exchange efficiency of the platform diesel generator set.

[0004] This utility model proposes a cooling system, which includes: at least one variable frequency water pump and at least one water cooling unit; wherein each variable frequency water pump is used in the outlet area of ​​a cold water tank; wherein the interior of the cold water tank is provided with a partition to divide the interior of the cold water tank into an outlet area and a return area; each water cooling unit is arranged in parallel, and each variable frequency water pump is connected to each water cooling unit to transport cold water in the outlet area to each water cooling unit; each water cooling unit is connected to the return area, and each water cooling unit is used to receive the medium to be cooled, to use cold water to perform heat exchange and cooling of the medium to be cooled, and to transport the heated cold water to the return area.

[0005] Furthermore, in the aforementioned cooling system, each water-cooling unit includes a heat exchanger and an electric gate valve. Each variable frequency water pump is connected to the first inlet of the heat exchanger via a water supply pipeline to deliver cold water from the outlet area to the heat exchanger. The second inlet of the heat exchanger receives the medium to be cooled, and the heat exchanger exchanges heat between the cold water and the medium. The first outlet of the heat exchanger is connected to the return water area to deliver the heated cold water to the return water area. The second outlet of the heat exchanger outputs the cooled medium. The electric gate valve is installed on the water supply pipeline.

[0006] Furthermore, in the above cooling system, there is one water supply pipeline, and each variable frequency water pump is connected to the water supply pipeline; each water-cooled unit is equipped with a branch pipeline, and the first inlet of the heat exchanger in each water-cooled unit is connected to the water supply pipeline through its respective branch pipeline; the electric gate in each water-cooled unit is installed on the corresponding branch pipeline.

[0007] Furthermore, in the above cooling system, the heat exchanger is a plate heat exchanger; and / or, the cold water tank is a seawater tank.

[0008] Furthermore, in the above cooling system, in each water-cooled unit, there are two heat exchangers arranged in parallel. The first inlet of each heat exchanger is connected to a corresponding branch pipe, and the first outlet of each heat exchanger is connected to the return water zone. The second inlet of one heat exchanger is used to receive the medium to be cooled at a first temperature, and the second inlet of the other heat exchanger is used to receive the medium to be cooled at a second temperature, wherein the first temperature is greater than the second temperature. An electric gate is placed between the connection point of the corresponding branch pipe and the water supply pipe and the connection point of the first inlet of the two heat exchangers to control the simultaneous delivery of cold water to the two heat exchangers.

[0009] Furthermore, the cooling system further includes: a control device and at least one detection device; wherein, each detection device corresponds one-to-one with each water-cooling unit, and each detection device is installed in the pipeline of the corresponding water-cooling unit that receives the medium to be cooled, so as to detect the temperature of the medium to be cooled; the control device is electrically connected to each detection device, each variable frequency water pump and each water-cooling unit, and is used to receive the temperature of the medium to be cooled detected by the corresponding detection device, and when the temperature of the medium to be cooled is greater than or equal to a preset temperature, control the variable frequency water pump to draw cold water to deliver to the corresponding water-cooling unit, and control the corresponding water-cooling unit to start; when the temperature of the medium to be cooled is less than the preset temperature, control the variable frequency water pump to stop delivering cold water and control the corresponding water-cooling unit to shut down.

[0010] Furthermore, in the aforementioned cooling system, the control device is electrically connected to the heat exchanger and electric gate in each water-cooling unit. It is used to control the electric gate to open and control the variable frequency water pump to draw cold water to deliver to the heat exchanger when the temperature of the medium to be cooled is greater than or equal to the preset temperature, and to control the heat exchanger to start; when the temperature of the medium to be cooled is less than the preset temperature, it controls the variable frequency water pump to stop delivering cold water and controls the electric gate and heat exchanger to close.

[0011] Furthermore, in the aforementioned cooling system, the control device is also used to adjust the frequency of each variable frequency water according to the temperature of the medium to be cooled, so as to adjust the flow rate of the cold water delivered to each water-cooling unit.

[0012] Furthermore, in the above cooling system, when there are two heat exchangers in each water-cooling unit, each detection device is installed on the pipeline where the heat exchanger receives the medium to be cooled at a first temperature.

[0013] Furthermore, the cooling system also includes a display device; wherein the display device is electrically connected to the control device and is used to display the temperature of the medium to be cooled and the parameters of each variable frequency water pump.

[0014] In this invention, each variable frequency water pump draws cold water from the outlet area of ​​the cold water tank and delivers the cold water to each water-cooling unit. Each water-cooling unit uses cold water to exchange heat and cool the medium to be cooled, eliminating the need for the existing fan cooling system that uses air cooling, thus improving heat exchange efficiency. When the cooling system is applied to offshore platform diesel generator sets, it can improve the heat dissipation capacity of the platform diesel generator sets, solving the problem that the existing fan cooling system reduces the heat exchange efficiency of the platform diesel generator sets. Furthermore, seawater can be used directly for cooling, which is simple and convenient, and the seawater after heat exchange can be reused. In addition, the setting of multiple water-cooling units can receive multiple streams of medium to be cooled, thereby simultaneously cooling multiple streams of medium to be cooled. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0016] Figure 1 This is a schematic diagram of the cooling system provided in an embodiment of the present invention. Detailed Implementation

[0017] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] See Figure 1 , Figure 1 This is a schematic diagram of the cooling system provided in an embodiment of the present invention. As shown in the figure, the cooling system includes at least one variable frequency water pump 1 and at least one water cooling unit 2. Each variable frequency water pump 1 is used in the outlet water zone 31 located within the cold water tank 3. Specifically, a partition 11 is provided inside the cold water tank 3, which divides the interior of the cold water tank 3 into an outlet water zone 31 and a return water zone 32.

[0019] Each water-cooling unit 2 is configured in parallel, and each variable frequency water pump 1 is connected to each water-cooling unit 2. Each variable frequency water pump 1 is used to extract cold water from the water extraction zone 31 and deliver the cold water to each water-cooling unit 2. Each water-cooling unit 2 is connected to the return water zone 32 of the cold water tank 3, and each water-cooling unit 2 is also connected to the medium input pipeline 9, which is used to deliver the medium to be cooled to the water-cooling unit 2. When the cooling system is applied to a diesel generator set, the medium input pipeline 9 is connected to the diesel generator set, which is used to deliver the medium to be cooled to the medium input pipeline 9, and then to the water-cooling unit 2.

[0020] Each water-cooling unit 2 is used to receive the medium to be cooled, and to use cold water to exchange heat and cool the medium, and to transport the heated cold water to the return water zone 32.

[0021] Each variable frequency water pump 1 draws cold water and delivers it to each water-cooling unit 2. In this way, when there are few water-cooling units 2, each variable frequency water pump 1 can be used as a main pump and the rest as backups. When there are many water-cooling units 2, each variable frequency water pump 1 works at the same time to ensure that multiple water-cooling units 2 work at the same time, so as to better perform heat exchange and cooling on the cooling medium.

[0022] When there are at least two water-cooling units 2, each water-cooling unit 2 can receive one cooling medium. In this way, multiple cooling media can be cooled at the same time. When the cooling system is applied to a diesel generator set, multiple water-cooling units 2 correspond one-to-one with multiple diesel generator sets. Each water-cooling unit 2 cools the cooling medium output by the corresponding diesel generator set. In this way, multiple diesel generator sets can be cooled at the same time, which improves the heat dissipation capacity of the diesel generator set.

[0023] Each water-cooling unit 2 transports the heated water to the return water zone 32, allowing for the reuse of the heated water in the return water zone 32. When the cooling system is applied to an offshore platform diesel generator set, the cold water tank 3 can be a seawater tank, and the cold water can be seawater. Each water-cooling unit 2 transports the heated seawater to the return water zone 32. This heated seawater can be used for hot well washing during offshore well repair, reducing the energy consumption of using boiler steam for heating and avoiding the diesel consumption required for heating seawater using boiler coils.

[0024] In practice, there are two variable frequency water pumps 1 and three water cooling units 2. Of course, the number of variable frequency water pumps 1 and water cooling units 2 can be determined according to the actual situation, and this embodiment does not impose any restrictions on this.

[0025] As can be seen, in this embodiment, each variable frequency water pump 1 draws cold water from the outlet area 31 of the cold water tank 3 and delivers the cold water to each water cooling unit 2. Each water cooling unit 2 uses cold water to exchange heat and cool the medium to be cooled, eliminating the need for the fan cooling system in the prior art to use air cooling, thus improving heat exchange efficiency. When the cooling system is applied to the diesel generator set of the offshore platform, it can improve the heat dissipation capacity of the platform diesel generator set, solving the problem that the fan cooling system in the prior art reduces the heat exchange efficiency of the platform diesel generator set. Furthermore, the cold water can be directly seawater, which is simple and convenient. The seawater after heat exchange can also be reused. In addition, the setting of multiple water cooling units 2 can receive multiple channels of medium to be cooled, thereby simultaneously cooling multiple channels of medium to be cooled.

[0026] See Figure 1 In the above embodiments, each water-cooling unit 2 includes a heat exchanger 21 and an electric gate 22. Each variable frequency water pump 1 is connected to the first inlet of the heat exchanger 21 through a water supply pipeline, and each variable frequency water pump 1 is used to extract cold water from the water extraction zone 31 and deliver the cold water to the heat exchanger 21.

[0027] The second inlet of the heat exchanger 21 is used to receive the medium to be cooled. Specifically, the second inlet of the heat exchanger 21 is connected to the medium input pipeline 9, which is used to transport the medium to be cooled into the heat exchanger 21.

[0028] Heat exchanger 21 is used to exchange heat between cold water and the medium to be cooled. The first outlet of heat exchanger 21 is connected to the return water zone 32 of cold water tank 3 via output pipe 8, and the first outlet of heat exchanger 21 is used to transport the heated cold water to the return water zone 32. The second outlet of heat exchanger 21 is used to output the cooled medium. Specifically, the second outlet of heat exchanger 21 is connected to diesel generator set via medium output pipe 10, and heat exchanger 21 transports the cooled medium to diesel generator set. In specific implementation, a manual butterfly valve is installed on medium output pipe 10 to control the opening and closing of medium output pipe 10. Preferably, heat exchanger 21 is a plate heat exchanger.

[0029] When the cooling system is applied to the diesel generator set on the offshore platform, the variable frequency water pump 1 draws seawater and delivers it to the heat exchanger 21. The first outlet of the heat exchanger 21 is connected to the seawater tank through the output pipeline 8 to deliver the heated seawater to the return water area 32 of the seawater tank.

[0030] An electric gate valve 22 is installed in the water supply pipeline 4. The electric gate valve 22 is used to control whether to supply cold water into the heat exchanger 21. Specifically, the electric gate valve 22 can be an electric butterfly valve.

[0031] Preferably, the heat exchanger 21 is a plate heat exchanger; and / or, the cold water tank 3 is a seawater tank.

[0032] There is one water supply pipeline 4, and each variable frequency water pump 1 is connected to the water supply pipeline 4.

[0033] Each water-cooled unit 2 is equipped with a branch pipe 5, so the number of water-cooled units 2 is the same as the number of branch pipes 5, and each water-cooled unit 2 corresponds one-to-one with each branch pipe 5. The first inlet of the heat exchanger 21 in each water-cooled unit 2 is connected to the water supply pipe 4 through its corresponding branch pipe 5, and the electric gate valve 22 in each water-cooled unit 2 is installed on the corresponding branch pipe 5. Specifically, the first inlet of the heat exchanger 21 in each water-cooled unit 2 is connected to the corresponding branch pipe 5, and each branch pipe 5 is connected to the water supply pipe 4, so that the first inlet of each heat exchanger 21 is connected to the water supply pipe 4 through the corresponding branch pipe 5 to receive cold water in the outlet water zone 31.

[0034] See Figure 1 In the above embodiments, each water-cooling unit 2 has two heat exchangers 21, which are connected in parallel. The first inlet of each heat exchanger 21 is connected to a corresponding branch pipe 5, and the first outlet of each heat exchanger 21 is connected to the return water zone 32. The second inlet of one heat exchanger 21 receives a medium to be cooled at a first temperature, and the second inlet of the other heat exchanger 21 receives a medium to be cooled at a second temperature, where the first temperature is greater than the second temperature. Specifically, the second inlet of one heat exchanger 21 receives a high-temperature medium to be cooled, and the second inlet of the other heat exchanger 21 receives a low-temperature medium to be cooled. This parallel connection of the two heat exchangers 21 allows for simultaneous heat exchange of media at different temperatures, improving heat exchange efficiency.

[0035] In each water-cooled unit 2, an electric gate valve 22 is installed on the branch pipe 5. The electric gate valve 22 is positioned between the connection point of the corresponding branch pipe 5 and the water supply pipe 4 and the connection point of the first inlet of the two heat exchangers 21. That is, there is a connection point where the branch pipe 5 and the water supply pipe 4 are connected, and there is also a connection point on the branch pipe 5 for the first inlet of the two heat exchangers 21. The electric gate valve 22 is installed between the two connection points. More specifically, in the direction of cold water flow, the electric gate valve 22 is installed before the first inlet of the two heat exchangers 21 and after the connection point of the branch pipe 5 and the water supply pipe 4. In this way, the electric gate valve 22 can control the simultaneous delivery of cold water to the two heat exchangers 21.

[0036] As can be seen, in this embodiment, each water-cooling unit 2 has a simple structure and is easy to implement.

[0037] See Figure 1In the above embodiments, the cooling system further includes a control device 6 and at least one detection device 7. The number of detection devices 7 is the same as the number of water-cooling units 2, with each detection device 7 corresponding one-to-one with each water-cooling unit 2. Each detection device 7 is disposed on the pipeline of the corresponding water-cooling unit 2 that receives the medium to be cooled. Specifically, each detection device 7 is disposed on the corresponding medium input pipeline 9, and each detection device 7 is used to detect the temperature of the medium to be cooled. Preferably, each detection device 7 is a temperature sensor.

[0038] The control device 6 is electrically connected to each detection device 7, each variable frequency water pump 1, and each water cooling unit 2. The control device 6 receives the temperature of the medium to be cooled detected by each detection device 7, and when the temperature of the medium to be cooled is greater than or equal to a preset temperature, controls the variable frequency water pump 1 to draw cold water and deliver it to the corresponding water cooling unit 2, and controls the corresponding water cooling unit 2 to start, thereby cooling the medium to be cooled. The control device 6 is also used to control the variable frequency water pump 1 to stop delivering cold water to the corresponding water cooling unit 2 when the temperature of the medium to be cooled is less than the preset temperature, and controls the corresponding water cooling unit 2 to shut down, thereby stopping the cooling of the medium to be cooled.

[0039] In practice, the preset temperature can be determined according to the actual situation, and this embodiment does not impose any restrictions on it. In this embodiment, the preset temperature is 40°C.

[0040] The control device 6 is electrically connected to the heat exchanger 21 and the electric gate 22 in each water-cooling unit 2. The control device 6 controls the electric gate 22 in the corresponding water-cooling unit 2 to open when the temperature of the medium to be cooled is greater than or equal to a preset temperature, and controls the variable frequency water pump 1 to draw cold water to be delivered to the heat exchanger 21 in the corresponding water-cooling unit 2, while simultaneously controlling the heat exchanger 21 to start. Thus, when the electric gate 22 is open, cold water can be delivered to the heat exchanger 21 through the electric gate 22. The control device 6 is also used to control the variable frequency water pump 1 to stop delivering cold water when the temperature of the medium to be cooled is less than the preset temperature, and controls the electric gate 22 and the heat exchanger 21 in the corresponding water-cooling unit 2 to close. Thus, the variable frequency water pump 1 no longer draws cold water to be delivered to the heat exchanger 21, and with the electric gate 22 closed, cold water cannot be delivered to the heat exchanger 21, and the heat exchanger 21 stops heat exchange and cooling.

[0041] Preferably, the control device 6 is also used to adjust the frequency of each variable frequency water pump 1 according to the temperature of the medium to be cooled, so as to adjust the flow rate of the cold water delivered to the heat exchanger 21 of each water-cooling unit 2. In this way, the flow rate of the variable frequency water pump 1 can be intelligently adjusted, further reducing energy consumption, and achieving the purpose of energy saving and consumption reduction while meeting the heat exchange requirements of the medium to be cooled.

[0042] In practice, each variable frequency water pump 1 is equipped with a water pump heat dissipation structure, which is connected to the control device 6. The control device 6 controls each water pump heat dissipation structure to cool down the corresponding variable frequency water pump 1.

[0043] As can be seen, in this embodiment, the control device 6 controls the variable frequency water pump 1 to draw cold water according to the temperature of the medium to be cooled, and controls the corresponding water cooling unit 2 to start, thereby cooling the medium to be cooled. This achieves intelligent control, is simple and convenient to operate, and can effectively reduce the temperature of the medium to be cooled.

[0044] When there are two heat exchangers 21 in each water-cooling unit 2, each detection device 7 is set on the pipeline of the heat exchanger 21 that receives the medium to be cooled with a first temperature. Specifically, if the second inlet of the first heat exchanger receives the medium to be cooled with a first temperature, and the second inlet of the second heat exchanger is used to receive the medium to be cooled with a second temperature, then the detection device 7 is set on the pipeline of the second inlet of the first heat exchanger that receives the medium to be cooled with a first temperature. That is to say, the second inlet of the first heat exchanger is connected to the first medium input pipeline, which supplies the medium to be cooled with a first temperature into the first heat exchanger, and the detection device 7 is set on the first medium input pipeline.

[0045] The detection device 7 detects the temperature of the medium to be cooled, which has a first temperature. When the detected temperature is greater than or equal to the preset temperature, the control device 6 controls the electric gate 22 to open, and simultaneously controls the variable frequency water pump 1 to start and the two heat exchangers 21 to start. Thus, the variable frequency water pump 1 draws cold water and delivers it to the water supply pipeline 4. Since the electric gate 22 is located between the connection point of the corresponding branch pipeline 5 and the water supply pipeline 4 and the connection point of the first inlet of the two heat exchangers 21, after the electric gate 22 opens, cold water is simultaneously delivered to the two heat exchangers 21. One heat exchanger 21 exchanges heat between the cold water and the medium to be cooled, which has the first temperature, and the other heat exchanger 21 exchanges heat between the cold water and the medium to be cooled, which has a second temperature. When the detected temperature is less than the preset temperature, the control device 6 controls the variable frequency water pump 1 to stop delivering cold water and controls the electric gate 22 and the two heat exchangers 21 to close.

[0046] See Figure 1 In the above embodiments, the cooling system further includes a display device. The display device is electrically connected to the control device 6. The control device 6 transmits the detected temperature of the medium to be cooled and the parameters of each variable frequency water pump 1 to the display device. The display device receives and displays the temperature of the medium to be cooled and the parameters of the variable frequency water pump 1, wherein the parameters of the variable frequency water pump 1 include frequency, etc.

[0047] In this embodiment, there is one water supply pipeline 4, one output pipeline 8, three water-cooling units 2, each water-cooling unit 2 having two parallel heat exchangers 21, three branch pipelines 5, and two variable frequency water pumps 1. The output ends of the two variable frequency water pumps 1 are connected to the water supply pipeline 4. The three branch pipelines 5 correspond one-to-one with the three water-cooling units 2. The first inlet of the two heat exchangers 21 in each water-cooling unit 2 is connected to the corresponding branch pipeline 5. The first outlet of the two heat exchangers 21 in each water-cooling unit 2 is connected to the return water zone 32 through the output pipeline 8.

[0048] Both variable frequency water pumps 1 draw cold water and deliver it to the water supply pipeline 4, which then delivers it to the two heat exchangers 21 in each water-cooling unit 2. In this way, when there are few water-cooling units 2, the two variable frequency water pumps 1 can work as one main pump and one as a backup pump. When there are many water-cooling units 2, the two variable frequency water pumps 1 work simultaneously to ensure that multiple water-cooling units 2 work at the same time, thereby cooling multiple diesel generator sets.

[0049] In specific implementation, a liquid level sensor is installed in the outlet zone 31 of the cold water tank 3 to detect the liquid level of the cold water in the outlet zone 31. The cooling system also includes a water pump. The control device 6 is electrically connected to the liquid level sensor and the water pump. The control device 6 receives the liquid level of the cold water in the outlet zone 31. When the liquid level of the cold water in the outlet zone 31 is lower than a preset level, the control device 6 controls the water pump to draw cold water to replenish the outlet zone 31. When the cold water tank 3 is a seawater tank, the water pump can draw seawater and transport it to the outlet zone 31 to ensure that there is sufficient seawater in the outlet zone 31, thereby ensuring heat exchange and cooling between the seawater and the medium to be cooled.

[0050] In summary, in this embodiment, each variable frequency water pump 1 draws cold water from the outlet area 31 of the cold water tank 3 and delivers the cold water to each water cooling unit 2. Each water cooling unit 2 uses cold water to exchange heat and cool the medium to be cooled, eliminating the need for the fan cooling system used in the prior art, which improves the heat exchange efficiency. When the cooling system is applied to the diesel generator set of the offshore platform, it can improve the heat dissipation capacity of the platform diesel generator set. Furthermore, the cold water can be directly seawater, which is simple and convenient. The seawater after heat exchange can also be reused. In addition, the arrangement of multiple water cooling units 2 can receive multiple streams of medium to be cooled, thereby simultaneously cooling multiple streams of medium to be cooled.

[0051] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0052] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cooling system, characterized in that, include: At least one variable frequency water pump (1) and at least one water cooling unit (2); wherein, Each of the variable frequency water pumps (1) is used in the outlet area (31) of the cold water tank (3); wherein, the interior of the cold water tank (3) is provided with a partition (11) to divide the interior of the cold water tank (3) into an outlet area (31) and a return area (32); Each of the water-cooling units (2) is arranged in parallel, and each of the variable frequency water pumps (1) is connected to each of the water-cooling units (2) to transport the cold water in the outlet water area (31) to each of the water-cooling units (2); each of the water-cooling units (2) is connected to the return water area (32), and each of the water-cooling units (2) is used to receive the medium to be cooled, and to use the cold water to perform heat exchange and cooling on the medium to be cooled, and to transport the cold water after heat exchange and heating to the return water area (32).

2. The cooling system of claim 1, wherein, Each of the water-cooling units (2) includes: a heat exchanger (21) and an electric gate (22); wherein, Each of the variable frequency water pumps (1) is connected to the first inlet of the heat exchanger (21) via a water supply pipeline (4) to deliver cold water in the outlet area (31) to the heat exchanger (21); The second inlet of the heat exchanger (21) is used to receive the medium to be cooled. The heat exchanger (21) is used to exchange heat between the cold water and the medium to be cooled. The first outlet of the heat exchanger (21) is connected to the return water zone (32) to transport the heated cold water to the return water zone (32). The second outlet of the heat exchanger (21) is used to output the cooled medium. The electric gate (22) is installed in the water supply pipeline (4).

3. The cooling system according to claim 2, characterized in that, The water supply pipeline (4) is a single line, and each of the variable frequency water pumps (1) is connected to the water supply pipeline (4); Each water-cooled unit (2) is provided with a branch pipe (5), and the first inlet of the heat exchanger (21) in each water-cooled unit (2) is connected to the water supply pipe (4) through its respective branch pipe (5). The electric gate (22) in each water-cooled unit (2) is provided on the corresponding branch pipe (5).

4. The cooling system according to claim 2, characterized in that, The heat exchanger (21) is a plate heat exchanger; and / or, The cold water tank (3) is a seawater tank.

5. The cooling system according to claim 3, characterized in that, In each of the water-cooling units (2), there are two heat exchangers (21) arranged in parallel. The first inlet of each of the two heat exchangers (21) is connected to the corresponding branch pipe (5), and the first outlet of each of the two heat exchangers (21) is connected to the return water zone (32). The second inlet of one heat exchanger (21) is used to receive the medium to be cooled with a first temperature, and the second inlet of the other heat exchanger (21) is used to receive the medium to be cooled with a second temperature. The first temperature is greater than the second temperature. The electric gate (22) is placed between the connection point of the corresponding branch pipeline (5) and the water supply pipeline (4) and the connection point of the first inlet of the two heat exchangers (21) to control the simultaneous delivery of cold water to the two heat exchangers (21).

6. The cooling system of claim 5, wherein, Also includes: The control device (6) and at least one detection device (7); wherein, Each of the detection devices (7) corresponds to each of the water cooling units. Each detection device (7) is installed in the pipeline of the corresponding water cooling unit (2) to receive the medium to be cooled, so as to detect the temperature of the medium to be cooled. The control device (6) is electrically connected to each of the detection devices (7), each of the variable frequency water pumps (1) and each of the water cooling units (2), and is used to receive the temperature of the medium to be cooled detected by each of the detection devices (7), and when the temperature of the medium to be cooled is greater than or equal to the preset temperature, control the variable frequency water pump (1) to draw cold water to deliver to the corresponding water cooling unit (2), and control the corresponding water cooling unit (2) to start; when the temperature of the medium to be cooled is less than the preset temperature, control the variable frequency water pump (1) to stop delivering cold water and control the corresponding water cooling unit (2) to shut down.

7. The cooling system according to claim 6, characterized in that, The control device (6) is electrically connected to the heat exchanger (21) and electric gate (22) in each of the water-cooling units (2). It is used to control the electric gate (22) to open when the temperature of the medium to be cooled is greater than or equal to the preset temperature, and to control the variable frequency water pump (1) to draw cold water to deliver to the heat exchanger (21), and to control the heat exchanger (21) to start; when the temperature of the medium to be cooled is less than the preset temperature, it controls the variable frequency water pump (1) to stop delivering cold water, and controls the electric gate (22) and the heat exchanger (21) to close.

8. The cooling system of claim 6, wherein, The control device (6) is also used to adjust the frequency of each of the variable frequency water pumps (1) according to the temperature of the medium to be cooled, so as to adjust the flow rate of the cold water delivered to each of the water cooling units (2).

9. The cooling system according to claim 7, characterized in that, When there are two heat exchangers (21) in each water-cooling unit (2), each detection device (7) is installed on the pipeline of the heat exchanger (21) that receives the medium to be cooled at a first temperature.

10. The cooling system according to claim 6, characterized in that, Also includes: Display device; wherein The display device is electrically connected to the control device (6) and is used to display the temperature of the medium to be cooled and the parameters of each of the variable frequency water pumps (1).

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